Sub-Zero 600 Series Technical & Service Manual page 25

Electronic Control System
600 Series
(Prior to #1810000)
Monitor Icemaker System and Display If Service Is Needed.
The microprocessor monitors the voltage supplied to the icemaker water valve (See Figure 3-16). If the water valve
is energized for more than fifteen (15) seconds, power to the icemaker system is interupted, and a signal is sent to
the SERVICE and ICE indicators on the LCD to flash (See Figure 3-17).
NOTE: To allow ice to freeze fully and reduce effects of low water pressure, the electronic control system disables
the icemaker system for 45 minutes after each ice harvest.
Figure 3-16. Water Valve Monitored.
SERVICE
ICE
Figure 3-17. ICE and SERVICE Indicators Flashing = Water Valve Energized Too Long
3-11
#3756270 - Revision B - January, 2006